Honing device for razor blades



G. H. NELSON HONING DEVICE FORRAZO R BLADES Feb. 5, 4

Filed April 24, 1955 George H. Nelson.

' mg the device Wit'h a 'U-shaped ;frame having PatentedFeb. 5, 1 935Home Davies roa-nezonbmnl s j 1 V I qeorgell.fNelsonQMoraQMinn. fApplicationApfiLM,1933, Serial No; 16,67,642

"My invention relatesto devices-"for honing razor blades and has for itsobject to provide :a devioe' by means of which two-razorblades may besimultaneously honed. 4 r i Another object-of the invention residesun-pro- .viding ajrame and in constructing the frame,

with two razor blade holders-extending outward ly therefrom and adaptedto supporttwo blades 10 with the cutting edges thereof substantially ina common plane.

A feature of the invention resides marranging said holders "so that-theblades extend outwardly h si n Qnms iig e; vAnobjectof{theinventiongresides in constructjaws fixed relative jthereto and projecting outwardlytherefrom in opposite directions.

Another'object of the-invention 'residesjin'pro viding movable jawsmovable toward and :from

said gfixed jaws and in constructing said :move

able J s With "flanges extending alon t legs of the frame and "pivotedthereto. I

, ,A-feature of the invention-resides .in constructing "the legs withsockets and the flanges with fulcrums ,swingable in said sockets.

An object of the invention residesin providing one ormore springclipscircular-in form and em bracing said frame and flanges for urgingsaid movable jaws toward the fifixed jaws and :for holding the 'fulcrumsin said sockets.

Another object of the invention ;r esidesj;in

providing said flanges with extensions-projecting outwardly beyond ;saidframe and torming finger pieces ,by means of :which'the movablegiaws maybemoved away from the fixed jaws in opposition to the action of saidspringjclips.

I Other objects ofthe inyention reside the: novel cornbinationandarrangement of parts and in the details of constructionherei-nafterQiIIustratedand/or described.

In the drawing: Y I s Fig. 1 is a perspective ;view of a razor bladehoning device illustrating an embodiment: of my invention.

I Fig.2 is a perspective *view of the various parts ofgthedeviceshown inFig. 1 detached from one another.

Fig. 3' is a sectional view taken on line 33 of Fig. land-drawn toalargerscale.

Fig. 4 is a view similar to -Fig.3 showing the holders in openposition.1

In the use of razor blade holders of the ordinary type in'whicha,-single"-b1adeis held considerablefiwear occurs upon parts of theholder at such 'localities of the holder --as -engage "the two razorblades'for simultaneous honing. I These parts will now Ice-describedi'ndetail.

;The frame 10 ispreferably U-shaped in con struction -having two legs 11and 12 --'and a curved connecting portion 13. This frame is preferably Iconstructed of sheet metalbent in the desired for'm and is provided -at-the ends offthe "legs 1- 1: l

and 12 with two members-14 and 15 whichpro ject outwardly therefrom inoppositeidi-rections and which are disposed to form an obtuse anglealmost equal to 180. These members consti-ff tut'e jaws forming parts ofthe blade sewers 8 and 9 'andare fixed with respect to the'frame "-10.

The l blade holders "8 "and 9* -'further comprise laws 16 and 17 whichoverlie the jaws14 'and15. These jaws are also constructed of sheetmetaland are formed with-flanges 1B and '19*-extend-' ingupwardly-therefrom and adapted to overlie the legs ll and '12 oftheframe'm. The legs 11 and '12 of "frame 10 :are constructed withsockets 20 and 21 which are disposed hear the connecting. portion 13 ofsaid. frame andwhich are adapted to receive-fulcrums2'2 and 23 formedon. the outer ends of flanges-IB and 193*" By meansof this constructionthe two jaws 16"and 17 are pivotedfor movement toward and 'from- 35 thejaws 14 and 15. v e

For the purpose of holding the two fulcrums 22- and 23 in cooperativerelation with-sockets 20 and 21, two spring clips 24 and 25 areernployed. These clips'enc'ompass"the-frame10*and 4o theflanges 18 and1-9 of jaws '16 and 1'7and engage the flanges 18 and 19 intermediate thefulcrums 22 and 23 and the jaws 16'and 17. The. edges 26 and 27 of theseclips normally lie closer together than thewidth ofthe-frame 1'0 so thatI the said clips are sprung apart in the application of the same to the--device whereby the flanges 18-and ware-urged againstthe legs 11 and 12of the frame 10 and'the jaws 16 and'17 brought into engagement'with thejaws 14 and To prevent disengagement of these clips 5 15; from theflanges 18 and 19,.the. said :fianges' are formed with protuberances 28--which engage the said clips and hold-the same properly applied.

The two spring clips 24 and'25 are spaced-from one another asbestshown-Fig. "-1: (Dntw'o 5" t which project upwardly above theconnecting portion 13 of frame and which serve as finger the blades. 1

pieces by means of which the two jaw members 16 and 17 may bemanipulated. The ends 26 and- 27 of the spring clips 24 and 25 engagethe flanges 18 and 19 intermediate the jaws 16 and 17 and the fulcrums22 and 23 as previously described. Due to this construction the springclips 24 and 25 are flexedand'the jaws 16 and 1'7 moved away a from thejaws 14 and 15 when the two finger pieces 29 and 30 are pressedtogether.

In Figs. 1, 3 and 4, two razor blades are shown as mounted inthe'holders8'and'9;

Therazor blade 32 is a double edgedfrazor blade which is providedwith'threeholes 34 alongthe same. Inthe jaw 1'7 are constructed holes 35which register with the holes 34. In the jaw-d5 are providednubs 36which are adapted t6 enter the;;hole$;.35;i These nubspassethrough theholes 34in the razor blade andL serve I tofhold the razor blade; inproper position within the holder The razor-blade 31; is a single edgedblade having abacking 3'7 attached to the same to stiffen and? reinforcethe blade proper. To receive'a blade of this type the holder 11 isconstructedto-form two-complemental grooves 38 and 39in the two jawsl6and '14; which grooves receive the backing 3'? of the-blade proper andalso hold the blade at the properposition. Byxmeans ofthis construction,bothsingle edged-and double edged blades can be honed,

- Although Ihave shown as constructed to receiveone it can readilybecomprehendedthat the, holders can beconstructed so-that either'singleedged. or

double edged blades may bqhoned by the same 'dev'ice..- v s :The'operation of the invention is as follows:

Finger-pieces 29 and30are first brought together, which causes the twoflanges 18 and 19 to pivot about the fulcrums 22-;and 23 and the jaws16- and 1'7 to swing away-from thejaws 14 and 15.

The bladesmayithenbe inserted between the re specti ve jaws v and thepressure on the finger" pieces29 and 30-released. The razor bladesgthenbecome securely clamped in placeand occupy the positions shown inFig.3.' Thedevice is'then grasped by the frame 10 between twospringclips 24 and 25 and manipulated over thesurface'of? the hone inthe customary manner; It will be; noted thatmerely the two cutting'edgesof theblades 31 and 32 engagethe surfacebf. the hone; which isdesignated at 40 in Fig. 3. In this manner, wearing of the parts of theholders for the blades is entirely-prevented andv 'the'sharpening oftheblades eifectively accomplished. After the blades have been sharpenedon one side, theholders are again open and the bladesreversed and theprocess repeated as freqeuntlyas found necessary'to'procure the desiredsharpeningof i said flxedijaws, and a circular spring clip encom v.Myinvent ion is highly advantageous in that a simple and practicalconstruction is provided whereby two blades may be simultaneously honed.

at one time; With myinventionwear of the hold-' er or parts of thedevice. through abrasion on the hone is entirelyprevented. With myinvention the blades are held in proper position and at as hereindisclosed} may said M frame, and means theirazor blade holder blade ofeach kind,

- ployed and only one type of blade is desired to be sharpened, theholder for the other type of blade can be provided with a dummy-bladewhich is permanently retained within the same. My invention can beconstructedfat a nominal cost and is fool proof in construction andpositive in operation. 31 and 32 Changes in the specific form of myinvention,

scope of what isclaimed without departing-from the spirit of myinvention. I

.4 Having describe'dmy invention, what I claim as new andgdesire toprotect by'Letters Patent is:

1. Ina'device'of the class described, a U-shaped frame, two jaws;extending outwardly. from the legs of said frameinop positedirectionsand fixed 7 relative theret a pair of movable jaws overlylng Isaid fixed jaws,flanges formed; on saidv movable,

jaws andextending alon the -Ieg'sofsaid frame, means for pivoting saidflanges to the legs of about the pivoting, means.

be made within the for. swinging, said jaws 2. ,Inja device of the classdescribed, a

frame, two jaws extending outwardly from the legs of, saidcframe inopposite, directions and pair of movable .jaws.

flanges formed on movable jaws and extendingl along .the legsfof saidframe, means as pivoting .saidflanges toflxed relative lthereto,,aoverlying said fixed jaws,

the legs of said frame, and-gextensions on'said flanges projecting abovesnarmme forming finger pieces for swinging: said movable jaws away fromsaid fixed jaws.

, 3. 'In a device of. the class a U- shaped frame, two jaws extendingoutwardly from," I

thelegs of said frame in opposite directions and fixedrelative thereto,9,1 pai1' of movable jaws overlying'said fixed jawsffianges formed onsaid movable jaws andlextending along. the legs of said frame, means Ifor pivoting said flanges to the legs of said frame, projecting above vv piecesfor swinging. saidmovablejaws away from said fixed jaws, and aspring clipenga il both of said flanges for, urging said movable jawsagainst said fixed jaws.;;

1 4; In a device of the class described, a U-shaped frame, two jawsextending outwardly from thelegs of said frame in opposite directionsand fixed relativethereto, a pair-of movable-jaws .over-,,

lying said fixed jaws, flanges formedon said movable jaws andextendingvalong the legs of said frame, means tor pivoting said;flangesto the legs:

of said frame," extensionson said, flanges projecting above said frameand forming finger pieces for swinging, said movablejaws away frommovable jaws towardsaid fixed jaws.

1 5. In a device of the class described, a Uj-sh'aped en i se fii n s.said frame andtforming. finger frame, two jaws extending outwardly; fromthe legs, I

of said frame in opposite directions and fixed relative thereto,a pairof movable jawsoverlying said fixed jaws, flanges formed on-said movablejaws s and extending along the legsgof .saidframe, a"

socketformed in each of the legs ofsaid frame near the connectingportion of the'frame, a fulcrum on each ,-of said flangeskfor engagementwith said socket .1 91 pivoting said movable jaws for movement towardand from said fixed jaws, a spring engaging both of said jaws forholding said fulcrums in said sockets and for urging saidmovable jawstoward said fixed jaws, and means for swinging said jaws about saidfulcrums.

6. In a device of the class described, a U-shaped frame, two jawsextending outwardly from the" legs of said frame in opposite directionsand fixed relative thereto, a pair of movable jaws overlying frame, anda circular spring clip encompassing said frame and flanges and engagingsaid flanges intermediate said jaws and fulcrums for urging "saidmovable-jaws toward said fixed jaws and for holding said fulcrums insaid sockets.

GEORGE H. NELSON.

said fixed jaws, flanges formed on said movable jaws and extending alongthe legs of said frame, means for pivoting said flanges to the legs ofsaid

